Ger de Waard, Management Consultant, Netherlands
A Lean Six Sigma Black Belt (LSSBB) is a professional who is well versed in the Lean Six Sigma Methodology, who leads improvement projects, typically in a full-time role. A LSSBB possesses a thorough understanding of all aspects within the phases of DMAIC, inclusive of statistical analysis. A LSSBB understands how to perform and interpret Lean Six Sigma tools and how to use standard principles of Lean.
An higher (NL: HBO/WO) education is preferred however we have seen experienced middle (NL: MBO) educated persons perform very well as LSSBB.
You can compare the certifying bodies such as IIBLC (more towards Lean), IASSC or ASQ. There are more, but these are the more common ones.